robustified "warn" environment if \parindent is zero (e.g. within itemize, description etc.);
3 \newcommand{\indexdef}[3]%
4 {\ifthenelse{\equal{}{#1}}{\index{#3 (#2)|bold}}{\index{#3 (#1\ #2)|bold}}}
5 \newcommand{\indexref}[3]{\ifthenelse{\equal{}{#1}}{\index{#3 (#2)}}{\index{#3 (#1\ #2)}}}
7 \newcommand{\isatt}[1]{{\def\isacharminus{-}\def\isacharunderscore{\_}\tt #1}}
9 \newcommand{\indexoutertoken}[1]{\indexdef{}{syntax}{#1}}
10 \newcommand{\indexouternonterm}[1]{\indexdef{}{syntax}{#1}}
11 \newcommand{\indexisarelem}[1]{\indexdef{}{element}{#1}}
13 \newcommand{\isasymAND}{\isakeyword{and}}
14 \newcommand{\isasymIS}{\isakeyword{is}}
15 \newcommand{\isasymWHERE}{\isakeyword{where}}
16 \newcommand{\isasymBEGIN}{\isakeyword{begin}}
17 \newcommand{\isasymIMPORTS}{\isakeyword{imports}}
18 \newcommand{\isasymIN}{\isakeyword{in}}
19 \newcommand{\isasymSTRUCTURE}{\isakeyword{structure}}
20 \newcommand{\isasymFIXES}{\isakeyword{fixes}}
21 \newcommand{\isasymASSUMES}{\isakeyword{assumes}}
22 \newcommand{\isasymSHOWS}{\isakeyword{shows}}
23 \newcommand{\isasymOBTAINS}{\isakeyword{obtains}}
25 \newcommand{\isasymASSM}{\isacommand{assm}}